Internal-combustion engine.



H. H. OWENS.

INTERNAL COMBUSTION ENGINE.

APPLICATION man 1AN.29.1915.

l 9150970@ Patented Aug. l?, 1915.

3 SHEETS-SHEET l.

Ralph HOM/ne A TTOH/VEVS R. H. OWENS.

INTERNAL COMBUSTION ENGINE.

193315097000 APPLICATION FILED IAN. 29,. I9I5. Patented Aug. 17 1915..

3 SHEETS-SHEET 2.

ivi-T I? E IIIA LE [NVE/WOR Ralph HOwens aw fsf BVM A TTHNEVS R. H. OWENS.

INTERNAL COMBUSTlON ENGINE.

APPLICATION FILED JAN. 29. 1915 Lymw. Patented Aug. 17,1915.

3 SHEETS-.SHEET 3.

INVENTO? Ralph H. Owens /1 TTOR/VE V8 narra n. oms, or cozAn, n'nrnasxa.

INTERNAL-COMBUSTIQN ENGINE.

To all 'whom t may concern. Y

Be it known that I, RALPH H. OwnNs, a

citizen ofthe United States, and a resident exact description.

This invention relates to internal combustion engines and has to dealmore particuiarlyl with valve mechanisms of that t e in which a tubular valve lwithin the cylinder f et reciprocates to control the admission of ex-v plosive mixture to the cylinder and the exl.

haust of the spent gases therefrom.

1 The linvention has for its general objects to improve and simplify the construction and-'operation of valve mechanisms of the character referred to so as to be reliable and ecient in use, comparatively simple and inexpensive to manufacture, and vso designed' that the mixture is admitted with a'minimum of wire-drawing efect and the exhaust gases freely dischar e because of the largeareas of the inlet an exhaust ports and the long periods of openingA thereof.

A further object of the invention is the provision of a tubular inlet and exhaust valve driven by a novel, simple and effective mechanism from the secondary or half speed shaft in such a manner that the valve will have a rocking reciprocatory motion to open and close the inlet and exhaust ports in proper sequence.

With such `objects in view, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will be set `forth with particuarity in `the following description and claims appended hereto. Y

In the accompanying drawings, which illustrate one embodiment of the invention and wherein similar characters of reference indicate corresponding arts in all the views, Figure 1 is a partial side view of a multiple cylinder engine with two of the cylinders in section to illustrate the valve mechanism; Fig. 2 is a' vertical section on l the line 2'-2, Fig. 1; Fig. 3 is an enlarged lsectional view of one cylinder and the link connection between the valve thereof and the secondary crank shaft; Fig. 4 is a horizontal section on the line 4 4, Fig. 3; Fig. 5 is a plan view of the operating connection between.- the secondary crank shaft and a Specification of Letters Eatent.V

diagrammatic view showing the relative po-l sition ointhe valve and piston just prior to the opening o f the exhaust ports; Fig. 11 is a .view showing the valve with its ports closed, as at the beginning of the suction stroke; I Fig.A '12 is a diagrammatic view showingthej relative position of the valve and-piston in correspondence with Fig. 11;' Fig. 13 1s a view of aA valve withits inlet ports open; Fig. 14 is adiagrammatic view showing the relativeposition `ofthe valve and piston at the beginning of the compression stroke; and Fig. 15 is Va graphic view showing the times and durations oitv the valve o peningg; andY closingl 'periods in a two lif'evolution cycle ofoperation.

In the present instance the invention is vshown in connection with a multiple cylinderengine, but it is to be understood that it is applicable to a single cylinder engine.

Referring to the drawing, each cylinder 1 hastherein a piston 2, connected b a rod 3 lPatentedAug. il?, i915. application mea January es, i915. serial no. 5,042.

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with the main crank shaft 4, the cad 5 of,A i I the cylinder being of the rentrant form,

and this, toether with the cylinders, is water-]ackete As shown inFig. ,4, each cylinder has a pair of inlet ports l and apair of exhaust ports E. The pairs of ports l and are disposed at opposite sides of the cylinder and the ports o each pair are spaced apart from each other. .By arranging the ports in pairs the valve can .open

`and close the ports with a smaller range of movement than would be required for a singleopening of the same area as a pair of ports. The inlet ports communicate with the chamber 6 connected with a manifold 7, and the exhaust ports E discharge into an exhaust chamber 8 which connects with an exhaust manifold 9.

' ln each cylinder is a cylindrical or tubular valve V which has a snug worln'ng tit in the cylinder so that it can reciprocate for openin'hand closing the ports in the cylinder. e piston 2 reciprocates within the valve V and has the re ar four-cycle series of movements, an the valve has an independent movement through connecting crank shaft 4 through gearing 11;

` mon p ane and so spaced apart that the inlet ports of the valve will' re 'ster simultaneousl with both the cylin er inlet ports I whi e the exhaust ports are closed, and the exhaust ports e of the valve will reglster with the cylinder exhaust ports E when' the inlet ports are closed, and et in a third or intermediate position alll o bthe valve ports will be closed. s

The valve` is adapted to have a longitudinal reciprocatory and a rotary reciprocatory movement, which movements are simultaneous so that the resultant movement will prevent the wearing of grooves. This movement is brou ht about by means of a crank 12 on the secondary shaft 10, which has a crank pin box 13 connected by a link 14 with a tubular lug 15 on the outside of the valve V at` the end opposite from the ports. The link is connected by pivot pinsv or bolts 16 and 17 with the crank pin box 13 and valve V. These pivot pins 16- and 17 are parallel with veach other andV also with the axis of the valve and transverse to the axis of the crank 12.-

ln referrin to Fig. 3 it will be assumed that the cra 12 is revolving inan anticlockwise direction, and from theposition shown it causes'the valve V to in'ove upwardly and simultaneously turn to the right throu h the rst quarter of a revolution, and t en upwardly and simultaneously to the left durin the second quarter of a revolution, and uring the third quarter the valve V moves downwardly. and to the left, while during the fourth quarter the valve moves downwardly and turns to the right. By this cycle of movement the inlet and exhaust ports are o ened and closed in the proper sequence l or four-cycle operation. It will be observed that the link 14 will have center.

For amore definite understanding of the cycle of operation reference is to be had to Figs. 7 to 15 inclusive. In Fig. 7 the valve V is shown with its ports closed, which is the position it occupies during the power stroke. The valve ports are considerably above the cylinder ports, as shown in Fig. 8, and as the piston 2 moves on its working stroke there is a simultaneous movement of the valve downwardly and to the left, so that by the time the main crank 4 moves through` approximately one hun dred and thirty-five degrees, the exhaust ports e of the valve will meet the cylinder ports E and begin to register therewith, and the exhaust gases will begin to escape and continue escaping while -the crank 4 moves through two hundred and twenty-ve degrecs when the piston 2 will be at the end of its exhaust stroke'. At the end ofthe .exhaust stroke the valve is'in the position shown inFig. 11, having returned thereto from the position shown in Fig. 9, during the last part of the exhaust stroke, and lnovi the valve begins to move in an anti-clockwise direction fr'om the position shown in Fig. 11 to that shown in Fig. 13, thus'opening the inlet ports z', and during this'move ment of the valve the piston travels loutwardly from the position shown in Fig. 12 to its outer dead center, and partly inward op its next stroke, the crank 4" of the engine traveling through approximately ltwo hundred and twenty five degrees.- AThe piston now completes its inward movement 4and vcompresses the charge which .is retained 1n ings, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while I have described the principle 'of operation, together with the apparatus which Inow consider to be the best embodiment thereof, I desire to have it understood that the apparatus shown is merely illustrative and that such changes may be made when desired as are within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: y

1. An internal combustion engine comprising a cylinder having inlet and exhaust ports, a tubular valve in the cylinder having inlet and exhaust ports, a piston reciprocating in the valve, a crank shaft connected with the piston, a secondary shaft driven by the crank shaft, and an operatingconnection between the secondary shaft and valve, said means including linked memberspiv otally connected together and with the valve, the axesof the pivotal connections being parallel with the axis of the valve, whereby the rotation of the secondary shaft imparts a rocking and reciprocatory move-l ment to the valve.

2. An internal combustion engine comprising a cylinder having pairs of inlet and 'link with the said member and disposed www@ w pm'alel with the axis b@ miv@ and om mme to this speccaml im. the presence @E Whlph the lmk swmgs as a @xsd mls, amd @W0 subsmlbmg wlmfass. a plvot connectmg the lmk mth h@ valve,

whereby the valve receives a, rocking RMI-9H H @mmr and. longitudinally reciprocatory moyemen; Wtmsses:

from the seconary shaft., H, W. FMNT,

n testimony whereof l hay@ signed my RAY Gn. Hmamsa 

